Qt QImage图片翻转（水平、垂直、顺时针、逆时针）

水平翻转  2 void ImageViewer::horFilp()  3 {  4     image = image.mirrored(true, false);  5     imageLabel->setPixmap(QPixmap::fromImage(image));  6 }  7 垂直翻转  8 void ImageViewer::verFilp()  9 { 10     image = image.mirrored(false, true); 11     imageLabel->setPixmap(QPixmap::fromImage(image)); 12 } 13 顺时针旋转 14 void ImageViewer::clockwise() 15 { 16  QMatrix matrix; 17     matrix.rotate(90.0); 18     image = image.transformed(matrix,Qt::FastTransformation); 19     imageLabel->setPixmap(QPixmap::fromImage(image)); 20 } 21 逆时针旋转 22 void ImageViewer::anticlockwise() 23 { 24  QMatrix matrix; 25     matrix.rotate(-90.0); 26     image = image.transformed(matrix,Qt::FastTransformation); 27     imageLabel->setPixmap(QPixmap::fromImage(image)); 28 }